Interesting. So you are saying other optional forms are available after separation from service, however, the only optional form available for an "in-service" distribution is a lump sum. I am not sure if that is kosher. Is this a volume submitter document?
1.417(e)-1(b) ...
. A QJSA is an annuity that commences immediately. Thus, for example, a plan may not offer a participant separating from service at age 45 a choice only between a single sum distribution at separation of service and a joint and survivor annuity that satisfies all the requirements of a QJSA except that it commences at normal retirement age rather than immediately. To satisfy this section, the plan must also offer a QJSA (i.e., an annuity that satisfies all the requirements for a QJSA including the requirement that it commences immediately).
I see this says "at separation of service", so maybe there is an exemption for "in-service". Possible, but not logical.